What social challenges are posed by a pyramid-shaped versus an inverted pyramid-shaped age structure diagram?
What will be an ideal response?
Growing populations have a pyramid-shaped age structure diagram. Growing populations face problems associated with depletion of resources such as fertile agricultural and grazing land, clean water, and raw material and energy stores. They face the threat of war as people fight over limited resources. Growing populations also face issues of dealing with increased pollution and waste. An inverted pyramid-shaped age structure diagram reflects an aging population. Aging populations face the challenges of caring for their elderly. Social programs such as health care and Social Security may become stressed to the limit as there are fewer young workers to support those who are beyond their most productive years. Economic growth may be compromised, and there might be a weaker military.
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This is the first observable step in the development of a supercell tornado:
A) increased wind speed. B) formation of a wall cloud. C) slow horizontal rotation of a large part of the cloud. D) formation of a funnel.
The high price of food on the global market is closely related to
A) the increased use of fertilizers and the rising cost of fossil fuels to produce them. B) the increased use of biological control and other sustainable agricultural methods. C) the cost to construct and use modern forms of irrigation. D) the cost of remediation to restore degraded soils to usable conditions.
Given the compounds 2,3-dimethylpentane, 3-ethylpentane and 3-methylhexane, which are constitutional isomers of one another?
A) only 2,3-dimethylpentane and 3-ethylpentane B) only 2,3-dimethylpentane and 3-methylhexane C) only 3-ethylpentane and 3-methylhexane D) They are all constitutional isomers of one another.
Knowledge-based resources include the quantity, skill, educational level, productivity, and cost of labor
Indicate whether the statement is true or false